Book-support.



v, 'I l PATENTED 0001.31, 1005.

B. TH0MA. L 000K SUPPORT.

APPLICATION FILED JULY '1. 1904.

K i an,

' UNITED STATES Patented January 31, 1905.

EGID THOMA, OE READING, PENNSYLVANIA.

BOOK-SUPPORT.`

SPECIFICATION-forming part lof Letters Patent No. 781,034, dated January31, 1905.

.Application iiled July '7, 1904:. Serial No. 215,608.

To all whom t may concer-7c:

Be it known that I, Een) THOMA, a subject of the Emperor of Germany,residing in the city of Reading, county of Berks, State of Pennsylvania,have invented certain new and useful .Improvements in Book-Supports, ofwhich the following is a specification.

My invention relates particularly to a booksupport ada-pted for holdingcity directories- .in the claims.

Figure 1 is a plan view of the table portion. Fig. 2 is a frontelevation of the complete device. showing the table level and in sectionon the line 2 2 of Fig. 1. Fig. 3 is a side elevation of the portionabove the pedestal, showing the table in cross-section on the line 3 3of Fig. 1. Fig. 4 is a sectional plan showing the book-supporting shelf.modified form of pedestal.

A indicates a pedestal which may be of any desired form and height. Y

B is a pedestal-top rotatably mounted upon the pedestal and securedtherein by means of la set-screw c, engaging a circular groove in v thelatter against rotation, if desired.

Pivoted at 1 to the spindle-top B is a pair of radius-arms 2, upon theupper spread ends of which the table is adjustably supported. v Thistable, as shown, comprisesatop portion 3 anda depending book-supportingshelf 4, which is arranged below a central rectangular opening 5 in thetop 3, with which latter it is connected by a series of vertical posts6,' the book being thus carried below the top 3, so as to be inspectedthrough the opening 5, and

being securely retained by the posts 6 and by vso.

clamping devices 7 upon the shelf arranged to engage the opened cover ofthe book. The latter is thus practically secured against mis- Eig. 5shows a.

use or damage, while at the same time ready access is provided forcleaning or for removing anything which might fall through the opening5. top is adapted tovprominently` expose additional reference oradvertising matter, as desired. The table is pivotally carried upon theradius-arms 2, as shown, by means of pivotbars 10 on the under side ofthe top 3, upon which slide guide-sleeves 11, pivoted to the ends 12 ofthe radius arms. The pivotal 'guide-bars 1 0 are preferably of angularcrosssection, as indicated, between the bearingears 13 13 onthe top 3,and the guide-sleeves 11 are non-rotatably slidable thereon against thetension in each case of a spring 14, so that the table may be lowered tothe position indicated by the dotted lines, Fig. 2, or to anyintermediate position by merely loosening the clamping-nut 15 at theirpivotal connection 1 to the pedestal-top and pressing the table down-asfar as desired, the clamping-nut 15 being' retightened to lock theradius-arms in adjusted position. Any desired slant may also be given tothe table, which is arranged to swing upon the bearing ends of theguidebars 10 in a plane at right angles to the plane of the radius-armsand is locked at the proper incline by means of the thumb-nuts 16.

vVarious modifications of the speciiic construction shown rand describedmay evidently be made within the spirit of my invention.

What I claim is- 1. A book-supporting table comprising a top portionhaving a central opening, and a depressed book-supporting shelf beneathsaid opening attached to said top portion by connecting-posts the spacesbetween which facilitate cleaning of said shelf.

2. A book-supporting table comprising a top portion having a centralopening, a depressed book-supportingv shelf beneath said openingattached to said top portion by connecting-posts, and clamping devicesuponsaid shelf for securing the opened book thereto,

rIhe marginal portion 8 of the the spaces between said posts affordingaccess to said clamping devices. v,

3. A book-support comprising a pedestal, a rotatable pedestal-top, apairof radius-arms adjustably clamped to said pedestal-top, and a 10Qy tablepivotally carried upon the spread upper ends of said arms and arrangedto swing in a plane at right angles to the swingotI the arms.

4. A book-support Comprising a pedestal, a rotatable pedestal-top, apair of radiusarms adjustably clamped to said pedestal-top and havingguide-sleeves pivoted to their upper ends and a table having guide-barsengaged by said sleeves, said table being arranged to swing in a planeat right angles to the swing of the arms.

5. A book-support comprising a pedestal, a rotatable pedestal-top, apair of radius-arms adjustably clamped to said pedestal-top and havingguide-sleeves pivoted to their upper ends, a table carrying pivot-barsengaged by Said sleeves, and means for looking said bars to secure thetable in properly-inclined position upon the arms.

6. A book-support comprising a pedestal, a rotatable pedestal-top, apair of radius-arms adjustably clamped to said pedestal-top and havingguide-sleeves pivoted to their upper ends, a table carrying pvotallymounted guide-bars non-rotatably engaged by said guide-sleeves, andmeans for looking' said bars to secure the table in properly-inclinedposition upon the arms.

7. A boolvsupport comprising a pedestal, a rotatable pedestal-top, apair of radius-arms adjustably clamped to said. pedestal-top and havingguide-sleeves pivoted to their upper ends, a table carrying pivotallymounted guide-bars non-rotatably engaged by said guide-sleeves, springsupon said guide-bars against the tension of which said sleeves areadjustable thereon, and means for locking said bars to secure the tablein properly-inclined position upon the arms.

In testimony whereof I aiiix my signature in the presence oi twowitnesses.

EG ID THOMA.

Witnesses:

D. M. STEWART, lV. G. STEWART.

